Been trying to upgrade the number of responses for my form and tried three different credit cards but it is not letting me. What I am seeing is the pic mentioned below

Been trying to upgrade the number of responses for my form and tried three different credit cards but it is not letting me. What I am seeing is the pic mentioned below
Hi
You’ll want to contact them here from the email address on your account.
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.